@article{10_4171_dm_349,
     author = {R. L\"u and X. Guo and K. Zhao},
     title = {Irreducible modules over the {Virasoro} algebra},
     journal = {Documenta mathematica},
     pages = {709--721},
     year = {2011},
     volume = {16},
     doi = {10.4171/dm/349},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/349/}
}